Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <20230406004018.1439952-1-drosen@google.com> <CAEf4BzZ2zjJKhyUtZKUxbNXJMggcot4MyNEeg6n4Lho-EVbBbg@mail.gmail.com>
In-Reply-To: <CAEf4BzZ2zjJKhyUtZKUxbNXJMggcot4MyNEeg6n4Lho-EVbBbg@mail.gmail.com>
From:   Daniel Rosenberg <drosen@google.com>
Date:   Wed, 26 Apr 2023 15:07:03 -0700
Message-ID: <CA+PiJmTHO3SPM_LvwFYWP+uf_KU4QytBshGzk78CZi8oGJ+rnw@mail.gmail.com>
Subject: Re: [PATCH 0/3] Dynptr Verifier Adjustments
To:     Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc:     bpf@vger.kernel.org, Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        John Fastabend <john.fastabend@gmail.com>,
        Andrii Nakryiko <andrii@kernel.org>,
        Martin KaFai Lau <martin.lau@linux.dev>,
        Song Liu <song@kernel.org>, Yonghong Song <yhs@fb.com>,
        KP Singh <kpsingh@kernel.org>,
        Stanislav Fomichev <sdf@google.com>,
        Hao Luo <haoluo@google.com>, Jiri Olsa <jolsa@kernel.org>,
        Shuah Khan <shuah@kernel.org>,
        Jonathan Corbet <corbet@lwn.net>,
        Joanne Koong <joannelkoong@gmail.com>,
        Mykola Lysenko <mykolal@fb.com>, linux-kernel@vger.kernel.org,
        linux-kselftest@vger.kernel.org, kernel-team@android.com
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

>
> It is expected that you build the freshest vmlinux image before
> building selftests, because we generate vmlinux.h from it. In your
> case we generated vmlinux.h from your system-wide
> /sys/kernel/btf/vmlinux BTF information, which doesn't yet have latest
> UAPI enums.
>
I'm still unable to build the selftests. I've got it pointed to a
locally built kernel built using the config/config.x86_64, and have
tried running the vmtest.sh script, and building just the tests via
make. I'm using O= to direct it to the out directory for the kernel
build. I've been hitting various errors when trying this. Confusingly
the error message isn't always the same. Currently from a clean build,
it complains about "linux/atomic.h" not found via #include
"../../../include/linux/filter.h"'s in various files. Other times it's
complained about the various helper functions from bpf_helper_defs.h
being unused.

I'm not sure if I'm invoking the command wrong, or missing
dependencies or something. I got past some earlier issues by updating
clang. Any idea what I'm doing wrong?